diff --git a/.github/workflows/builddoc.yml b/.github/workflows/builddoc.yml
deleted file mode 100644
index 5c1736d3c5b..00000000000
--- a/.github/workflows/builddoc.yml
+++ /dev/null
@@ -1,46 +0,0 @@
-name: Render documentation
-
-on:
-  push:
-  pull_request:
-  workflow_dispatch:
-
-permissions:
-  contents: read
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
-  cancel-in-progress: true
-
-env:
-  FORCE_COLOR: "1"
-  UV_SYSTEM_PYTHON: "1"  # make uv do global installs
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Install graphviz
-      run: sudo apt-get install graphviz
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: uv pip install .[docs]
-    - name: Render the documentation
-      run: >
-        sphinx-build
-        -M html ./doc ./build/sphinx
-        -vv
-        --jobs=auto
-        --show-traceback
-        --fail-on-warning
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
deleted file mode 100644
index 96a7ef718bd..00000000000
--- a/.github/workflows/lint.yml
+++ /dev/null
@@ -1,146 +0,0 @@
-name: Lint source code
-
-on:
-  push:
-  pull_request:
-  workflow_dispatch:
-
-permissions:
-  contents: read
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
-  cancel-in-progress: true
-
-env:
-  FORCE_COLOR: "1"
-  UV_SYSTEM_PYTHON: "1"  # make uv do global installs
-
-jobs:
-  # If you update any of these commands, don't forget to update the equivalent
-  # tox environment
-  ruff:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Get Ruff version from pyproject.toml
-      run: |
-        RUFF_VERSION=$(awk -F'[="]' '/\[project\.optional-dependencies\]/ {p=1} /ruff/ {if (p) print $4}' pyproject.toml)
-        echo "RUFF_VERSION=$RUFF_VERSION" >> $GITHUB_ENV
-
-    - name: Install Ruff
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        --write-out "%{stderr}Downloaded: %{url}\n"
-        "https://astral.sh/ruff/$RUFF_VERSION/install.sh"
-        | sh
-
-    - name: Lint with Ruff
-      run: ruff check . --output-format github
-
-    - name: Format with Ruff
-      run: ruff format . --diff
-
-  flake8:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: uv pip install --upgrade "flake8>=6.0"
-    - name: Lint with flake8
-      run: flake8 .
-
-  mypy:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: uv pip install ".[lint,test]"
-    - name: Type check with mypy
-      run: mypy
-
-  pyright:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: uv pip install ".[lint,test]"
-    - name: Type check with pyright
-      run: pyright
-
-  docs-lint:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: uv pip install --upgrade sphinx-lint
-    - name: Lint documentation with sphinx-lint
-      run: make doclinter
-
-  twine:
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: uv pip install --upgrade twine build
-    - name: Lint with twine
-      run: |
-        python -m build .
-        twine check dist/*
diff --git a/.github/workflows/lock.yml b/.github/workflows/lock.yml
deleted file mode 100644
index d86f4b36282..00000000000
--- a/.github/workflows/lock.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-name: Lock old threads
-
-on:
-  schedule:
-    - cron: "0 0 * * *"
-
-permissions:
-  issues: write
-  pull-requests: write
-
-jobs:
-  action:
-    if: github.repository_owner == 'sphinx-doc'
-    runs-on: ubuntu-latest
-    steps:
-      - uses: dessant/lock-threads@v3
-        with:
-          github-token: ${{ github.token }}
-          issue-inactive-days: "30"
-          pr-inactive-days: "30"
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
deleted file mode 100644
index b38a8d70983..00000000000
--- a/.github/workflows/main.yml
+++ /dev/null
@@ -1,289 +0,0 @@
-name: CI
-
-on:
-  push:
-    paths:
-      - ".github/workflows/main.yml"
-      - "sphinx/**"
-      - "tests/**"
-  pull_request:
-    paths:
-      - ".github/workflows/main.yml"
-      - "sphinx/**"
-      - "tests/**"
-
-permissions:
-  contents: read
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
-  cancel-in-progress: true
-
-env:
-  FORCE_COLOR: "1"
-  PYTHONDEVMODE: "1"  # -X dev
-  PYTHONWARNDEFAULTENCODING: "1"  # -X warn_default_encoding
-  UV_SYSTEM_PYTHON: "1"  # make uv do global installs
-
-jobs:
-  ubuntu:
-    runs-on: ubuntu-latest
-    name: Python ${{ matrix.python }} (Docutils ${{ matrix.docutils }})
-    strategy:
-      fail-fast: false
-      matrix:
-        python:
-        - "3.10"
-        - "3.11"
-        - "3.12"
-        docutils:
-        - "0.20"
-        - "0.21"
-#        include:
-#        # test every supported Docutils version for the latest supported Python
-#        - python: "3.12"
-#          docutils: "0.20"
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python ${{ matrix.python }}
-      uses: actions/setup-python@v5
-      with:
-        python-version: ${{ matrix.python }}
-    - name: Check Python version
-      run: python --version --version
-    - name: Install graphviz
-      run: sudo apt-get install graphviz
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: uv pip install .[test]
-    - name: Install Docutils ${{ matrix.docutils }}
-      run: uv pip install --upgrade "docutils~=${{ matrix.docutils }}.0"
-    - name: Test with pytest
-      run: python -m pytest -vv --durations 25
-      env:
-        PYTHONWARNINGS: "error"  # treat all warnings as errors
-
-  deadsnakes:
-    runs-on: ubuntu-latest
-    name: Python ${{ matrix.python }} (Docutils ${{ matrix.docutils }})
-    strategy:
-      fail-fast: false
-      matrix:
-        python:
-        - "3.13-dev"
-        docutils:
-        - "0.20"
-        - "0.21"
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python ${{ matrix.python }} (deadsnakes)
-      uses: deadsnakes/action@v3.2.0
-      with:
-        python-version: ${{ matrix.python }}
-    - name: Check Python version
-      run: python --version --version
-    - name: Install graphviz
-      run: sudo apt-get install graphviz
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install .[test]
-    - name: Install Docutils ${{ matrix.docutils }}
-      run: python -m pip install --upgrade "docutils~=${{ matrix.docutils }}.0"
-    - name: Test with pytest
-      run: python -m pytest -vv --durations 25
-      env:
-        PYTHONWARNINGS: "error"  # treat all warnings as errors
-
-  deadsnakes-free-threraded:
-    runs-on: ubuntu-latest
-    name: Python ${{ matrix.python }} (Docutils ${{ matrix.docutils }}; free-threaded)
-    strategy:
-      fail-fast: false
-      matrix:
-        python:
-        - "3.13-dev"
-        docutils:
-        - "0.20"
-        - "0.21"
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python ${{ matrix.python }} (deadsnakes)
-      uses: deadsnakes/action@v3.2.0
-      with:
-        python-version: ${{ matrix.python }}
-        nogil: true
-    - name: Check Python version
-      run: python --version --version
-    - name: Install graphviz
-      run: sudo apt-get install graphviz
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        python -m pip install .[test]
-    - name: Install Docutils ${{ matrix.docutils }}
-      run: python -m pip install --upgrade "docutils~=${{ matrix.docutils }}.0"
-    # markupsafe._speedups has not declared that it can run safely without the GIL
-    - name: Remove markupsafe._speedups
-      run: rm -rf "$(python -c 'from markupsafe._speedups import __file__ as f; print(f)')"
-    - name: Test with pytest
-      run: python -m pytest -vv --durations 25
-      env:
-        PYTHONWARNINGS: "error"  # treat all warnings as errors
-
-  windows:
-    runs-on: windows-2019
-    name: Windows
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Check Python version
-      run: python --version --version
-    - name: Install graphviz
-      run: choco install --no-progress graphviz
-    - name: Install uv
-      run: >
-        Invoke-WebRequest -Uri "https://astral.sh/uv/install.ps1"
-        | Invoke-Expression
-    - name: Install dependencies
-      run: uv pip install .[test]
-    - name: Test with pytest
-      run: python -m pytest -vv --durations 25
-      env:
-        PYTHONWARNINGS: "error"  # treat all warnings as errors
-
-  docutils-latest:
-    runs-on: ubuntu-latest
-    name: Docutils HEAD
-
-    steps:
-    - name: Install epubcheck
-      run: |
-        EPUBCHECK_VERSION="5.1.0"
-        mkdir /tmp/epubcheck && cd /tmp/epubcheck
-        wget --no-verbose https://github.com/w3c/epubcheck/releases/download/v${EPUBCHECK_VERSION}/epubcheck-${EPUBCHECK_VERSION}.zip
-        unzip epubcheck-${EPUBCHECK_VERSION}.zip
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Check Python version
-      run: python --version --version
-    - name: Install graphviz
-      run: sudo apt-get install graphviz
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: uv pip install .[test]
-    - name: Install Docutils' HEAD
-      run: uv pip install "docutils @ git+https://repo.or.cz/docutils.git#subdirectory=docutils"
-    - name: Test with pytest
-      run: python -m pytest -vv
-      env:
-        PYTHONWARNINGS: "error"  # treat all warnings as errors
-        DO_EPUBCHECK: "1"
-        EPUBCHECK_PATH: "/tmp/epubcheck/epubcheck-5.1.0/epubcheck.jar"
-
-  oldest-supported:
-    runs-on: ubuntu-latest
-    name: Oldest supported
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Check Python version
-      run: python --version --version
-    - name: Install graphviz
-      run: sudo apt-get install graphviz
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: |
-        uv pip install .[test] --resolution lowest-direct
-        uv pip install alabaster==1.0.0
-    - name: Test with pytest
-      run: python -m pytest -vv --durations 25
-      env:
-        PYTHONWARNINGS: "error"  # treat all warnings as errors
-
-  latex:
-    runs-on: ubuntu-latest
-    name: LaTeX
-    container:
-      image: ghcr.io/sphinx-doc/sphinx-ci
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Check Python version
-      run: python --version --version
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: uv pip install .[test]
-    - name: Test with pytest
-      run: python -m pytest -vv --durations 25
-      env:
-        PYTHONWARNINGS: "error"  # treat all warnings as errors
-        DO_EPUBCHECK: "1"
-
-  coverage:
-    if: github.event_name == 'push' && github.repository_owner == 'sphinx-doc'
-    runs-on: ubuntu-latest
-    name: Coverage
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Check Python version
-      run: python --version --version
-    - name: Install graphviz
-      run: sudo apt-get install graphviz
-    - name: Install uv
-      run: >
-        curl --no-progress-meter --location --fail
-        --proto '=https' --tlsv1.2
-        "https://astral.sh/uv/install.sh"
-        | sh
-    - name: Install dependencies
-      run: uv pip install .[test] pytest-cov
-    - name: Test with pytest
-      run: python -m pytest -vv --cov . --cov-append --cov-config pyproject.toml
-      env:
-        VIRTUALENV_SYSTEM_SITE_PACKAGES: "1"
-    - name: codecov
-      uses: codecov/codecov-action@v4
diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
deleted file mode 100644
index 29359f90958..00000000000
--- a/.github/workflows/nodejs.yml
+++ /dev/null
@@ -1,43 +0,0 @@
-name: CI (node.js)
-
-on:
-  push:
-    paths:
-      - ".github/workflows/nodejs.yml"
-      - "sphinx/themes/**.js"
-      - "tests/js/**"
-      - "package.json"
-      - "package-lock.json"
-  pull_request:
-    paths:
-      - ".github/workflows/nodejs.yml"
-      - "sphinx/themes/**.js"
-      - "tests/js/**"
-      - "package.json"
-      - "package-lock.json"
-
-permissions:
-  contents: read
-
-concurrency:
-  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
-  cancel-in-progress: true
-
-env:
-  FORCE_COLOR: "1"
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    env:
-      node-version: "20"
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Use Node.js ${{ env.node-version }}
-      uses: actions/setup-node@v4
-      with:
-        node-version: ${{ env.node-version }}
-        cache: "npm"
-    - run: npm install
-    - run: npm test
diff --git a/.github/workflows/transifex.yml b/.github/workflows/transifex.yml
deleted file mode 100644
index 78e74efcf5a..00000000000
--- a/.github/workflows/transifex.yml
+++ /dev/null
@@ -1,78 +0,0 @@
-name: Synchronise translations
-
-on:
-  schedule:
-  # 22:38 GMT, every Sunday. Chosen to be a random time.
-  - cron: "38 22 * * SUN"
-  workflow_dispatch:
-
-permissions:
-  contents: read
-
-jobs:
-  push:
-    if: github.repository_owner == 'sphinx-doc'
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Install transifex client
-      run: |
-        mkdir -p /tmp/tx_cli && cd $_
-        curl -o- https://raw.githubusercontent.com/transifex/cli/master/install.sh | bash
-      shell: bash
-    - name: Install dependencies
-      run: pip install --upgrade babel jinja2
-    - name: Extract translations from source code
-      run: python utils/babel_runner.py extract
-    - name: Push translations to transifex.com
-      run: |
-        cd sphinx/locale
-        /tmp/tx_cli/tx push --source --use-git-timestamps --workers 10
-      env:
-        TX_TOKEN: ${{ secrets.TX_TOKEN }}
-
-  pull:
-    permissions:
-      contents: write  # for peter-evans/create-pull-request to create branch
-      pull-requests: write  # for peter-evans/create-pull-request to create a PR
-    if: github.repository_owner == 'sphinx-doc'
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: "3"
-    - name: Install transifex client
-      run: |
-        mkdir -p /tmp/tx_cli && cd $_
-        curl -o- https://raw.githubusercontent.com/transifex/cli/master/install.sh | bash
-      shell: bash
-    - name: Install dependencies
-      run: pip install --upgrade babel jinja2
-    - name: Extract translations from source code
-      run: python utils/babel_runner.py extract
-    - name: Pull translations from transifex.com
-      run: |
-        cd sphinx/locale
-        /tmp/tx_cli/tx pull --translations --all --force --use-git-timestamps --workers 10
-      env:
-        TX_TOKEN: ${{ secrets.TX_TOKEN }}
-    - name: Compile message catalogs
-      run: python utils/babel_runner.py compile
-    - name: Create Pull Request
-      uses: peter-evans/create-pull-request@v7
-      with:
-        add-paths: |
-          sphinx/locale
-        commit-message: "[internationalisation] Update translations"
-        branch: bot/pull-translations
-        title: "[bot]: Update message catalogues"
-        labels: "internals:internationalisation"
-        body-path: babel_compile.txt